1. Department of Cardiology, Academic Medical Center, Amsterdam, The Netherlands (S.S., K.S., J.G.P.T., Y.M.P., W.E.K.).
2. Department of Cardiology, Slotervaartziekenhuis, Amsterdam, The Netherlands (A.H.M.).
3. Department of Cardiology, BovenIJ Ziekenhuis, Amsterdam, The Netherlands (A.L.B.).
4. Department of Cardiology, Alrijne Ziekenhuis, Leiderdorp, The Netherlands (P.v.P.).
5. Department of Cardiology, Flevoziekenhuis, Almere, The Netherlands (R.A.M.K.).
6. Department of Physiology and Cardiothoracic Surgery, Cardiovascular Research and Development Unit, Faculty of Medicine, University of Porto, Portugal (J.P.F.).
7. INSERM, Centre d’Investigations Cliniques Plurithématique, Université de Lorraine, CHRU de Nancy, France (J.P.F.).
8. Department of Internal Medicine, Centro Hospitalar do Porto, Instituto de Ciências Biomédicas de Abel Salazar, University of Porto, Portugal (I.M.).
9. Department of Cardiology, St Lucas Andreas Ziekenhuis, Amsterdam, The Netherlands (J.M.S.-T.).
10. Department of Cardiology, Tergooiziekenhuizen, Blaricum, The Netherlands (J.T.K.).
11. Department of Cardiology, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain (A.B.-G.).